C++蒟蒻手写堆RE求助

P1631 序列合并

您要知道，RE一般来说都是数组开小了。
by Firstly @ 2022-03-23 11:47:15

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建议开到 $3 \times 10^5$。
by 035966_L3 @ 2022-03-23 11:53:13

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@[Firstly](/user/525898) 谢谢大佬Thanks♪(･ω･)ﾉ
by Jason12 @ 2022-03-23 12:27:49

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@[035966_L3](/user/365654) 谢谢大佬，只是好像要开到 $3 \times 10^6$ 
by Jason12 @ 2022-03-23 12:29:30

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